Paper-machine.



L. 1. DEANE & M. P. WINGATE. PAPER MACHINE.

APPLICATION FILED APR 261 1915.

1, 1 55,2 1 9 Patented Sept. 28, 1915.

2 SHEETSSHEET 1.

w th Lewes attomlgo COLUMBIA PLANOGRAPH c0.,wAsNlNnTON. D. C.

L. J. DEANE & M. P. WINGATE.

PAPER MACHINE.

APPLICATION FILED APR. 26, 1915.

1,155,219. Patented Sept. 28, 1915.

2 SHEETS-SHEET 2.

/ o oqo o a ow r CDLUMfllA PLANOGRAPH CO.,WASH|NHTON D c LEWIS J. DEANE AND ltIA'GK P. WINGATE, OF MILLINOCKET, MAINE.

PAPER-MAGHINE.

. Specificationof Letters Patent.

Patented Sept. 28, 1915.

To all whom it may concern Be it known that we, Lnwrs J. DEANE and MACK P, VVINGATE, citizens of the United States, residing at Millinocket, in the county of Penobscot and State of Maine, have in vented certain new and useful Improvements in Paper-Machines; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to improvements in machines for manufacturing paper, and more particularly to those commonly known as the Fourdrinier type employing moisture absorbing couch rolls constructed of apertured shells and jackets of absorbentmaterial surrounding the same and adapted to remove moisture from the 'pulp conveyed thereto by the usual Fourdrinier wire.

Heretofore, in employing couch'rolls of this class, difliculties have been encountered, since numerous small particles ofpulp,fiber and the like, permeate through the absorbent jackets of the rolls and accumulate between such jacketsand the apertured shells, thus causing numerous projections upon-the peripheries of said jackets. As these projections come in contact with the Fourdrinier wire and pulp thereon, they not only form they exert excessive pressure and wear upon the Fourdrinier wire as well as upon the absorbent jacket. This necessitates, under the present day methods, removing the couch rolls a number of times during each month, and often a plurality of times inv a week, after which the jackets must be removed from said rolls in order to remove the deposits under such jackets. Needless to say, this requires a great amount of tlme and labor and necessitates that the machine'- therefrom without first removing the roll 1 from the machine. 7

With this object in view, the invention resides in certain novel features of construction and combinations of parts hereinafter described and particularly pointed out in the appended claims, two embodiments of the invention being shown in the accompanying drawings wherein like reference characters designate the same parts throughout the several views and wherein:

Figure l is a side elevation of a portion of a Fourdrinier machine improved in accordance with our invention; Fig. 2 is a longitudinal section of the type of couch roll shown in Fig. 1; Fig. 3 is an, end view partly in section of this type of roll, and Fig. 4 is a perspective view of a portion of a couch rollshowing a slightly difierent manner of cleaning the same. 7

In these drawings, constituting apart of the application, a portion of a Fourdrinierpaper machine M is shown, this machine including the usual relatively fixed roll R around'which one end of the Fourdrinier wire W is looped, and a couch roll 0 which is movable toward and away from the roll 13., said roll C being normallydisposed upon the wire W to compress the pulp thereon, thus partially drying the same and absorbing an appreciable amount of moisture prevalent therein. The machine M also includes the usual knife or the like K which travels upon the upper side of the couch roll C for the purpose of preventing moisture thereon from being conveyed upon the sheet ofpulp' disposed on the upper reach of the wire WV. Theconstruction so far briefly described, with the exception of the roll C, is well known to those skilled in the art to which the invention relates and further description or exposition is therefore deemed superfluous.

The couch roll C is disclosed in the drawings as comprising a cylindrical apertured shelll having open-work end walls 2 shown in the present application as provided adj a cent the shell 1, with circumferentially spaced outlet openings 3. The centers of the two end walls 2 are provided with hubs or the like through which the opposite ends of the shaft 4 pass and to which said shaft is secured in any preferred manner, the aforesaid ends of said shaft f being here shown as provided with longitudinally disposed .ports 5 which lead inwardly and deplying washing fluid, such as water thereto, A.

such means being shown iii-Figs. 1,2 and 3 in the fornr of flush pipes 7' through with a jacketf'S of any preferred style of absorbent material, felt being usually pro vided for this purpose. cure the jacket 8 upon the shell, the ends 9 To removably see of said jacketiare continued past the ends of the shell 1 and'inwardly into contact with "the outer edge portions ofthe end walls 2, at which point they are lacedat' 10 around the endsof theshaft 4 as indicated most clearly injF g. 3. V a f As 'herei'nbefore suggested, after the roll C has beenused .for sometime, fragments of pulp, nap, dirt, et.c., permeate through the jacket 8 and accumulate in deposits between said jacket and the cylindricalshell 1,

w thus causing projections upon the periphery of the former, which projections produce the undesirable results .well known to thoseskilled injthe art towhich the invention relates, but p'reviouslylset; forth herein. 7

, @When such an occurrence takes "place, with our improved;machine,j 1t 1s slmply; necessary to lntroduce Water or other-flushing fluid; into the minutespace between the shell l* and its surrounding jacket 8, thus softening the several deposits therein and allowing :the same to work therefrom through the apertures in said shell. From the latter, the fiU-iClEWlth the deleteriousmatter therein will be discharged through the several outlet openings 3 therein. It is to be observed, -however, that due to the fact that the laces 10 are disposed near the center of the end walls 2, a considerable body OfWater or other fluid used will be trapped with-V. I in the roll, this bodyof waternow also pro ducing advantageous results when the roll is rotated while retaining suchbody therein, it being evident that this will produce a cleaning effect upon all interior parts device. g 1

.In theform shown in Figs- 1,2 and 3, the fluid is introduced 7' into the space between the shell 1 and jacket S,b conveying.

such fluid through the pipes 7 and ports 5 and 6, into said shell,from which the fluid will seep through the-numerous apertures and Vwillthereby soften the material de- .posited between the shell and jacket.

We wish it understood, however, that although this means of introducing water into the couch roll is preferable, other construction for so doing might well be provided. Furthermore, itwill. be clearlv understood that butone of the-flush pipes 7 and portscoacting therewith need be employed, 7 al-. though quicker results are obtained by the use of one of such pipes at each end ofthe shaft 4. l I Y figure in question.

' connection With the accompanying draw? ings, it will be evident that we have notonly v of the Asillustrative of another manner in which the flushing fluid may be introduced into the is of substantially the same construction as that previously described. In this figure, however, the end walls 2 of the roll are.

provided with larger outlet openings 3" .roll, see Fig. a, in which the couch roll C.

central shaft 4 as, disclosed atlO. 'Itwill Y be bserved, however, that considerable 7 space will be leftbetween the shaft' l and the lacing 710, thereby enposingthe inner sides ofthe openings 3, this being advantageous, slnce the flush ng fluid maybe a forced through these openings into the couch rell by the provision of a commontype of flexible pipe or hose 7 j p Needless to say' th'is method of intreducing the scavenging water or other fluid operates to as great advan tage as the. method previously, described. From the foregoing description,- takenin improved: the construction of ,Fourdrinier paper machlnes, to the extent of prov ding re uvenating means-for the couchrollsthere:

of, hutwe have produced an innovationin the methodsof so rejuvenating or Y lengthening thevlives of such rolls. v

In the foregoing, we have described ceras disclosed inftheu V tain specific details of construction for pro-. Y

ducingprobably the best results, and in the drawings have shown such details, but it will be evidentthat we need not be limited thereto otherwise than to the extent to which the appended claims limit us. i We claim: .1 p p l 1. A machine for removing moisture from paper pulp including a-moisture absorbing couch roll comprising an aperturedcylindrical shell, a moisture absorbing jacket surrounding the same, and a 'fiush' pipe discharging intosaid shell.

2. A machine for-removing moisture from paperpulp including a moisture'absorbing couch roll comprising an apertured cylindri- I cal shell, openwork end Walls therefor, a moisture absorbing acket surrounding sair. shell, and a flush pipe discharging into-the shell through one of the end walls thereof.

3. A machine for removing moisture from paper pulp including a moisture absorbing couch roll comprising an aperturedcylindr'ical shell, open-Work end walls therefor, a moisture absorbing jacket surrounding said shell and continuing inwardly aroundlthe outer edge portions of said end walls, and a flush pipe discharging into .the shell through one of said end walls thereofI 4. A machine for removing moisture from paper pulp including a moisture absorbing couch'roll comprising an apertured cylin drical shell, a moisture absorbing jacket surrounding the same, and a fluid inlet into said shell for the admission of a flushing fluid.

5. The method of rejuvenating absorbent couch rolls having deposits between their apertured shells and the absorbent jackets thereof, consisting in introducing a fluid into the space occupied by the deposits.

6. The method of rejuvenating absorbent couch rolls having deposits between their apertured shells and the absorbent jackets thereof, consisting in trapping a body of fluid in said apertured shells and rotating the same While retaining such fluid therein.

7. The method of rejuvenating absorbent 15 couch rolls consisting in the admission of a fluid between the apertured shells of said rolls and the absorbent jackets surrounding the same. t

In testimony whereof We have hereunto set 20 our hands in presence of the subscribing Witnesses. I

LEWIS J. DEANE. MACK P. 'WINGATE. Witnesses:

FREDERICK E. DOYLE, G. B. MORAN, CARL vV. ULRAL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

= Washington, D. C. 

